WITecCOM.py 16.9 KB
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# -*- coding: utf-8 -*-
"""
GEPARD - Gepard-Enabled PARticle Detection
Copyright (C) 2018  Lars Bittrich and Josef Brandt, Leibniz-Institut für 
Polymerforschung Dresden e. V. <bittrich-lars@ipfdd.de>    

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program, see COPYING.  
If not, see <https://www.gnu.org/licenses/>.
"""

import os
import sys
try:
    import pythoncom
    import win32com.client
except ImportError:
    os.environ["NO_WITEC_CONTROL"] = "True"
    
from time import sleep, time
from ramanbase import RamanBase
from socket import gethostname


class WITecCOM(RamanBase):
    CLSID = "{C45E77CE-3D66-489A-B5E2-159F443BD1AA}"
    def __init__(self, hostname=None):
        super().__init__()
        if hostname is None:
            hostname = gethostname()
        self.IBUCSAccess = win32com.client.DispatchEx(self.CLSID, machine=hostname, 
                                                      clsctx=pythoncom.CLSCTX_REMOTE_SERVER)
        
    def connect(self):
        if not self.IBUCSAccess.RequestWriteAccess(True):
            self.connected = False
            return False
        
        IBUCSCore = win32com.client.CastTo(self.IBUCSAccess, 'IBUCSCore')
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        self.VersionInterface = IBUCSCore.GetSubSystemDefaultInterface("Status|Software|Application|ProgramVersion")
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        self.VersionMan = win32com.client.CastTo(self.VersionInterface, 'IBUCSStatusContainer')
        self.VersionMan.Update()
        version = self.VersionMan.GetSingleValueAsString()[1]
        try:
            vnr = version.split(",")[1].split(" Release")[0].strip()
        except:
            vnr = ""                
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        try:
            vnr = float(vnr)
        except ValueError:
            print("WITec: unknown version format:", version)
            vnr = 0.0 # version format unknown        
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        self.version = vnr
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        self.PosXInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SamplePositioning|AbsolutePositionX")
        self.PosYInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SamplePositioning|AbsolutePositionY")
        self.PosZInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|ScanTable|PositionMicroscopeZ")
        self.GoToInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SamplePositioning|GoToPosition")
        self.PosXCurInterface = IBUCSCore.GetSubSystemDefaultInterface("Status|Software|SamplePositioner|CurrentPositionX")
        self.PosYCurInterface = IBUCSCore.GetSubSystemDefaultInterface("Status|Software|SamplePositioner|CurrentPositionY")
        self.PosZCurInterface = IBUCSCore.GetSubSystemDefaultInterface("Status|Software|SamplePositioner|CurrentPositionZ")
        self.PosZCurUserInterface = IBUCSCore.GetSubSystemDefaultInterface("Status|Hardware|Controller|DataChannels|StepperMotorPosition")
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        self.PosXFloatMan = win32com.client.CastTo(self.PosXInterface, 'IBUCSFloat')
        self.PosYFloatMan = win32com.client.CastTo(self.PosYInterface, 'IBUCSFloat')
        self.PosZFloatMan = win32com.client.CastTo(self.PosZInterface, 'IBUCSFloat')
        self.PosXCurFloatMan = win32com.client.CastTo(self.PosXCurInterface, 'IBUCSStatusContainer')
        self.PosYCurFloatMan = win32com.client.CastTo(self.PosYCurInterface, 'IBUCSStatusContainer')
        self.PosZCurFloatMan = win32com.client.CastTo(self.PosZCurInterface, 'IBUCSStatusContainer')
        self.PosZCurUserFloatMan = win32com.client.CastTo(self.PosZCurUserInterface, 'IBUCSStatusContainer')
        self.GoToTrigger = win32com.client.CastTo(self.GoToInterface, 'IBUCSTrigger')
        
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        if vnr<5.1:
            self.ImageNameInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MultiCommVideoSystem|BitmapFileName")
            self.ImageNameMan = win32com.client.CastTo(self.ImageNameInterface, 'IBUCSString')
            self.ImageSaveInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MultiCommVideoSystem|SaveColorBitmapToFile")
            self.ImageSaveMan = win32com.client.CastTo(self.ImageSaveInterface, 'IBUCSTrigger')
            
            self.ImageHeightInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|Calibration|ImageHeightMicrons")
            self.ImageHeightMan = win32com.client.CastTo(self.ImageHeightInterface, 'IBUCSFloat')
            self.ImageWidthInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|Calibration|ImageWidthMicrons")
            self.ImageWidthMan = win32com.client.CastTo(self.ImageWidthInterface, 'IBUCSFloat')
            self.ImageRotationInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|Calibration|RotationDegrees")
            self.ImageRotationMan = win32com.client.CastTo(self.ImageRotationInterface, 'IBUCSFloat')
        else:
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            self.ImageNameInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|VideoImageFileName")
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            self.ImageNameMan = win32com.client.CastTo(self.ImageNameInterface, 'IBUCSString')
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            self.ImageSaveInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|AcquireVideoImageToFile")
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            self.ImageSaveMan = win32com.client.CastTo(self.ImageSaveInterface, 'IBUCSTrigger')
            
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            self.ImageHeightInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|Calibration|ImageHeightMicrons")
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            self.ImageHeightMan = win32com.client.CastTo(self.ImageHeightInterface, 'IBUCSFloat')
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            self.ImageWidthInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|Calibration|ImageWidthMicrons")
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            self.ImageWidthMan = win32com.client.CastTo(self.ImageWidthInterface, 'IBUCSFloat')
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            self.ImageRotationInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|Calibration|RotationDegrees")
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            self.ImageRotationMan = win32com.client.CastTo(self.ImageRotationInterface, 'IBUCSFloat')
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        self.SequencerStartInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerSingleSpectrum|Start")
        self.SequencerStartTrigger = win32com.client.CastTo(self.SequencerStartInterface, 'IBUCSTrigger')
        
        self.SequencerBusyInterface = IBUCSCore.GetSubSystemDefaultInterface("Status|Software|Sequencers|IsASequencerActive")
        self.SequencerBusyStatus = win32com.client.CastTo(self.SequencerBusyInterface, 'IBUCSStatusContainer') 
        
        self.TimeSeriesSlowNumMeasurementsInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|AmountOfMeasurements")
        self.TimeSeriesSlowNumMeasurementsMan = win32com.client.CastTo(self.TimeSeriesSlowNumMeasurementsInterface, 'IBUCSInt')
        self.TimeSeriesSlowNameInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|Naming|DataName")
        self.TimeSeriesSlowNameMan = win32com.client.CastTo(self.TimeSeriesSlowNameInterface, 'IBUCSString')
        self.TimeSeriesSlowNumAccumulationsInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|SpectrumAcquisition|Accumulations")
        self.TimeSeriesSlowNumAccumulationsMan = win32com.client.CastTo(self.TimeSeriesSlowNumAccumulationsInterface, 'IBUCSInt')
        self.TimeSeriesSlowIntTimeInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|SpectrumAcquisition|IntegrationTime")
        self.TimeSeriesSlowIntTimeMan = win32com.client.CastTo(self.TimeSeriesSlowIntTimeInterface, 'IBUCSFloat')
        self.TimeSeriesSlowNumInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|Naming|DataNumber")
        self.TimeSeriesSlowNumMan = win32com.client.CastTo(self.TimeSeriesSlowNumInterface, 'IBUCSInt')
        self.TimeSeriesSlowModeInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|MeasurementMode")
        self.TimeSeriesSlowModeMan = win32com.client.CastTo(self.TimeSeriesSlowModeInterface, 'IBUCSEnum')
        self.TimeSeriesSlowNextInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|NextMeasurement")
        self.TimeSeriesSlowNextMan = win32com.client.CastTo(self.TimeSeriesSlowNextInterface, 'IBUCSTrigger')
        
        self.TimeSeriesSlowStartInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|Start")
        self.TimeSeriesSlowStartMan = win32com.client.CastTo(self.TimeSeriesSlowStartInterface, 'IBUCSTrigger')
        
        self.TimeSeriesSlowStopInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|StopSequencer")
        self.TimeSeriesSlowStopMan = win32com.client.CastTo(self.TimeSeriesSlowStopInterface, 'IBUCSTrigger')
        
        self.TimeSeriesSlowIndNextInterface = IBUCSCore.GetSubSystemDefaultInterface("UserParameters|SequencerTimeSeriesSlow|IndexOfNextMeasurement")
        self.TimeSeriesSlowIndNextMan = win32com.client.CastTo(self.TimeSeriesSlowIndNextInterface, 'IBUCSInt')
        
        self.TimeSeriesSlowActivityInterface = IBUCSCore.GetSubSystemDefaultInterface("Status|Software|Sequencers|ActiveSequencer|CurrentActivity")
        self.TimeSeriesSlowActivityMan = win32com.client.CastTo(self.TimeSeriesSlowActivityInterface, 'IBUCSStatusContainer')
        
        self.RamanRelativeXInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|ProbePosition|RelativeX")
        self.RamanRelativeXMan = win32com.client.CastTo(self.RamanRelativeXInterface, 'IBUCSFloat')
        self.RamanRelativeYInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|Video|ProbePosition|RelativeY")
        self.RamanRelativeYMan = win32com.client.CastTo(self.RamanRelativeYInterface, 'IBUCSFloat')
        
        self.BrightnessInterface = IBUCSCore.GetSubSystemDefaultInterface("MultiComm|MicroscopeControl|WhiteLight|Top|BrightnessPercentage")
        self.BrightnessMan = win32com.client.CastTo(self.BrightnessInterface, 'IBUCSFloat')
        
        self.connected = True
        return True
    
    def getBrightness(self):
        assert self.connected
        return self.BrightnessMan.GetValue()
    
    def setBrightness(self, newval):
        if newval<0: 
            newval = 0.0
        elif newval>100.:
            newval = 100.0
        self.BrightnessMan.SetValue(newval)
        sleep(.1)
    
    def getRamanPositionShift(self):
        rx = .5-self.RamanRelativeXMan.GetValue() # current assumption is, that image center is current position
        ry = self.RamanRelativeYMan.GetValue()-.5
        width, height = self.ImageWidthMan.GetValue(), self.ImageHeightMan.GetValue()
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        return rx*width, ry*height        
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    def disconnect(self):
        if self.connected:
            self.IBUCSAccess.RequestWriteAccess(False)
        self.connected = False
    
    def getPosition(self):
        assert self.connected
        self.PosXCurFloatMan.Update()
        x = self.PosXCurFloatMan.GetSingleValueAsDouble()[1]
        self.PosYCurFloatMan.Update()
        y = self.PosYCurFloatMan.GetSingleValueAsDouble()[1]
        self.PosZCurFloatMan.Update()
        z = self.PosZCurFloatMan.GetSingleValueAsDouble()[1]
        return x, y, z
    
    def getSoftwareZ(self):
        self.PosZCurFloatMan.Update()
        z = self.PosZCurFloatMan.GetSingleValueAsDouble()[1]
        return z
    
    def getUserZ(self):
        assert self.connected
        self.PosZCurUserFloatMan.Update()
        z = self.PosZCurUserFloatMan.GetSingleValueAsDouble()[1]
        return z
        
    def moveToAbsolutePosition(self, x, y, z=None, epsxy=0.11, epsz=0.011):
        assert self.connected
        initpos = self.getPosition()
        # move only if new position is really different; repeat if new position is ignored (happens some times)
        while max(abs(initpos[0]-x), abs(initpos[1]-y))>epsxy:
            t0 = time()
            self.PosXFloatMan.SetValue(x)
            self.PosYFloatMan.SetValue(y)
            self.GoToTrigger.OperateTrigger()
            
            # wait till position is found within accuracy of epsxy; check if position changes at all
            distance = 2*epsxy
            while distance > epsxy:# and (lastpos is None or lastpos!=curpos):
                curpos = self.getPosition()
                distance = max(abs(curpos[0]-x), abs(curpos[1]-y))
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#                if ((time()-t0>0.5) and max(abs(curpos[0]-initpos[0]), abs(curpos[1]-initpos[1]))<epsxy) or (time()-t0>10.):
                if ((time()-t0>2) and max(abs(curpos[0]-initpos[0]), abs(curpos[1]-initpos[1]))<epsxy) or (time()-t0>10.):
                    print("WARNING: signal ignored; time: {} s, x, y: {}, {}, curPos: {}, initPos: {}".format((time()-t0), x, y, curpos, initpos))
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                    sys.stdout.flush()
                    break
                sleep(.01)
            sleep(.1)
            initpos = self.getPosition()
        if z is not None:
            self.moveZto(z, epsz)
            
    def moveZto(self, z, epsz=0.011):
        assert self.connected
        #z = round(z,2)
        while abs(self.PosZCurFloatMan.GetSingleValueAsDouble()[1]-z)>epsz:
            initpos = self.PosZCurFloatMan.GetSingleValueAsDouble()[1]
            t0 = time()
            self.PosZFloatMan.SetValue(z)
            distance = 2*epsz
            while distance > epsz:
                self.PosZCurFloatMan.Update()
                curpos = self.PosZCurFloatMan.GetSingleValueAsDouble()[1]
                distance = abs(curpos-z)
                if ((time()-t0>0.5) and abs(curpos-initpos)<epsz)  or (time()-t0>10.):
                    print("WARNING: signal z ignored:", time()-t0)
                    sys.stdout.flush()
                    break
                sleep(.01)
            sleep(.1)
        
    def saveImage(self, fname):
        assert self.connected
        self.ImageNameMan.SetValue(fname)
        self.ImageSaveMan.OperateTrigger()
        sleep(.1)
        
    def getImageDimensions(self):
        """ Get the image width and height in um and the orientation angle in degrees.
        """
        assert self.connected
        width, height = self.ImageWidthMan.GetValue(), self.ImageHeightMan.GetValue()
        angle = self.ImageRotationMan.GetValue()
        return width, height, angle
    
    def startSinglePointScan(self):
        assert self.connected
        self.SequencerStartTrigger.OperateTrigger()
        # Wait until sequencer has finished
        while True:
            self.SequencerBusyStatus.Update()
            Busy = self.SequencerBusyStatus.GetSingleValueAsInt()[1]
            if not Busy:
                break
            
    def initiateTimeSeriesScan(self, label, numberofscans, accumulations, integrtime):
        assert self.connected
        self.timeseries = numberofscans
        self.TimeSeriesSlowNameMan.SetValue(label)
        self.TimeSeriesSlowNumMeasurementsMan.SetValue(numberofscans)
        self.TimeSeriesSlowNumAccumulationsMan.SetValue(accumulations)
        self.TimeSeriesSlowIntTimeMan.SetValue(integrtime)
        self.TimeSeriesSlowModeMan.SetValueNumeric(0)
        self.TimeSeriesSlowNumMan.SetValue(0)
        self.TimeSeriesSlowStartMan.OperateTrigger()
        sleep(0.1)
        t1 = time()
        while True:
            self.TimeSeriesSlowActivityMan.Update()
            valid, act = self.TimeSeriesSlowActivityMan.GetSingleValueAsString()
            if act=="Waiting for next Measurement":
                break
            else:
                sleep(0.02)
                if time()-t1>3.:
                    print("Waiting for measurement ready...")
                    t1 = time()
        
        
    def nextTimeSeriesScan(self, num):
        assert self.timeseries
        self.TimeSeriesSlowNextMan.OperateTrigger()
        # Wait until sequencer has finished
        sleep(0.1)
        t1 = time()
        while True:
            ind = self.TimeSeriesSlowIndNextMan.GetValue()
            if ind>num:
                break
            else:
                sleep(0.02)
                if time()-t1>3.:
                    print("Waiting for next index...")
                    t1 = time()
        while True:
            valid, act = self.TimeSeriesSlowActivityMan.GetSingleValueAsString()
            if act=="Waiting for next Measurement":
                break
            else:
                sleep(0.02)
                if time()-t1>3.:
                    print("Waiting for measurement ready...")
                    t1 = time()
        if num==self.timeseries-1:
            self.timeseries = False